package com.wj.gulimall.order.web;

import com.wj.common.exception.NoStockException;
import com.wj.gulimall.order.service.OrderService;
import com.wj.gulimall.order.vo.OrderConfirmVo;
import com.wj.gulimall.order.vo.OrderSubmitVo;
import com.wj.gulimall.order.vo.SubmitOrderResponseVo;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;

@Controller
public class OrderWebController {

    @Autowired
    OrderService orderService;

    @GetMapping("/toTrade")
    public String toTrade(Model model) {
        OrderConfirmVo confirmVo = orderService.confirmOrder();
        model.addAttribute("orderConfirmData", confirmVo);
        return "confirm";
    }

    @PostMapping("/submitOrder")
    public String submitOrder(OrderSubmitVo vo, Model model, RedirectAttributes redirectAttributes) {
        //下单：创建订单，验证令牌，验证价格，所库存。。。。
        try {
            SubmitOrderResponseVo responseVo = orderService.submitOrder(vo);
            if (responseVo.getCode() == 0) {
                model.addAttribute("submitOrderResp", responseVo);
                return "pay";
            } else {
                String msg = "订单提交失败:";
                switch (responseVo.getCode()) {
                    case 1:
                        msg += "订单信息过期";
                        break;
                    case 2:
                        msg += "订单商品价格发生变化,请确认再次提交";
                        break;
                    case 3:
                        msg += "商品库存不足";
                        break;
                }
                redirectAttributes.addFlashAttribute("msg", msg);
                return "redirect:http://order.gulimall.com/toTrade";
            }
        } catch (Exception e) {
            if (e instanceof NoStockException) {
                String message = "商品库存不足";
                redirectAttributes.addFlashAttribute("msg", message);

            }
            return "redirect:http://order.gulimall.com/toTrade";
        }
    }
}
